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प्रश्न
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
An arrow shot out of a bow.
पर्याय
Kinetic energy
Potential energy
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उत्तर
Kinetic energy
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संबंधित प्रश्न
(i) The conversion of part of the energy into an undesirable form is called ______________.
(ii) For a given height h, __________________ the length l of the inclined plane, lesser will be the effort required.
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Name the form of energy which a body may possess even when it is not in motion. Give an example to support your answer.
State two advantages of producing electricity from solar energy.
State the energy transformation on the following:
Electricity is obtained from hydro energy.
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
State the energy changes which take place when:
In a heat engine.
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
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